I am toying with the idea of turning my 20 gal
tank into a salt tank after I move my puffers into their new tank. I have never done a marine tank but I've wanted one forever, and for the past year having a brackish tank has got me even more curious. Most likely my 20 will go back to fresh once the fish get moved, but I've been thinking about having a small reef tank. I will be moving my puffers to full marine when they mature, so I figure having a little practice before then can only help.
My question is, what equipment would be necessary to make this happen? Would I need a sump? Do I need a canister or is my HOB